5400 full-face half-mask: durable, easy to use and well-balanced. Hard, polycarbonate-covered lens ensures a 200º panoramic field of view. Scratch and impact resistant. Wide sealing surface guarantees comfort and perfect fit. Light and easy-to-use four-point head strap. Symmetric double absorbers evenly distribute the weight, improving balance and comfort of use. The product falls within category II of personal protective equipment. The product conforms to the following standard: EN 136.